TRW データシートの表示（PDF） - Unspecified

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TRW

Wireless High Frequency Transceiver Module (RF GFSK)

Unspecified 

5.4 Data Package Description

The data packet for both ShockBurstTM mode and direct mode communic ation is divided into 4

sections. These are:

PRE-AMBLE

ADDRESS

PAYLOAD

CRC

Figure 2 Data Package Diagram

Hereby is the information in detail about these 4 sections.

1. PREAMBLE

2. ADDRESS

3. PAYLOAD

4. CRC

 The preamble field is required in ShockBurst and Direct

Mode

 Preamble is 8 bits in length and is dependent of the first data bit in

direct mode.

PREAMBLE

1st ADDR-BIT

01010101

0

10101010

1

 The address field is required in ShockBurst mode.

 8 to 40 bits length.

 Address automatically removed from received packet in

shockBurst mode. In Direct Mode MCU must handle address

 The data to be transmitted

 In Shock-Burst mode payload size is 256 bits minus the following:

(Address: 8 to 40 bits. + CRC 8 or 16 bits).

 The CRC is optional in ShockBurst™ mode, and is not used in

Direct mode

 8 or 16 bits length

 The CRC is removed from the received output data in ShockBurst™ RX..

http://www.wenshing.com.tw ; http://www.rf.net.tw

TRW-24G Datasheet P.14

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